This bookmark is made with dk-weight yarn, making it nice and thin for those of us who dislike breaking book spines (I'm a librarian, remember?). Plus, it uses just a teensy amount of a skein so can either be made in bulk or used as a stashbuster. The stitch pattern is from Barbara Walker's First Treasury.
1 (partial) skein Patons Grace (1.75oz/50gm to 136yds/125m) 100% mercerized cotton (shown in Rose), CYCA size 3
US 4 (3.5mm) needles
Cast on 13 stitches.
Row 1 (wrong side): K1; (P5; K1) twice
Row 2: P1; (K1; YO; Sl1 K2Tog PSSO; YO; K1; P1) twice
Row 3: K1; (P5; K1) twice
Row 4: P1; (K2; YO; SSK; K1; P1) twice
Row 5: K1; (P5; K1) twice
Row 6: P1; (K5; P1) twice
Work these six rows eleven times
Bind off in pattern.
Weave in ends.
Block; I used a light iron with spray sizing to ensure the bookmark would be flat and just slightly stiff.
Finished bookmark is approx. 2in wide by 7in long.